Applies To: Windows Vista, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows 8

Lists or changes the COM port mappings to be compatible with MS-DOS applications.


In Windows Server 2008 R2, Terminal Services was renamed Remote Desktop Services. To find out what's new in the latest version, see What’s New in Remote Desktop Services in Windows Server 2012 in the Windows Server TechNet Library.


This command is the same as the change port command.

Additional references

Change port

Command-Line Syntax Key

Remote Desktop Services (Terminal Services) Command Reference